Delta Records missed

Dear All,

Greetings!!!

We had gone live on Aug'07 for MM-BIW.

We had done the Data Extraction using Split-Mirror approach.

There after the Delta upload was happening daily.

Since 25th. Oct the delta upload for one of the Inventory Infocube

is not happening.Till 24th. Oct the Delta and

Compressions has happened successfully in this Cube. From 25th. we see

that there is an error "Initialization Part has been deleted." Due to

this Delta is not getting triggered.

Datasource - 2LIS_03_BF , 2LIS_03_BX not appearing in RSA7 in R/3

system. We are trying to find reason how this got deleted.

Pls help us in resolving the issue and triggering the Delta. We are not

in a position to do the Initialization again.

Thanks

Esther